Understanding and Modelling Canadian Urban Systems and their Climate Interactions for Resilience Building and Developing Climate Change Adaptation Measures

了解和模拟加拿大城市系统及其气候相互作用，以增强抵御能力并制定气候变化适应措施

• 批准号: RGPIN-2019-05238
• 负责人: Sushama, Laxmi
• 金额: $ 4.44万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=715431
• 关键词: Understanding; Modelling; Canadian; Urban; Systems

It is now increasingly clear that actions must be taken soon to address the impacts of climate change by adapting and developing viable strategies and technologies that are socially acceptable and are low-impact, whether it is for harsh climates such as in the Arctic or densely populated urban regions. Ultra-high resolution climate change information that is greatly desired in many impact and adaptation studies, particularly for Canada's urban regions, is severely lacking. The proposed research will address this important and emerging need in understanding how urban environments modify weather and climate, particularly in the Canadian context, in current and future climates. My long-term research objective is to advance knowledge of urban-climate-engineering-sustainability systems to support long-term planning and management of resilient and sustainable urban engineering systems, including infrastructure. During this Discovery Grant, I will focus on the urban-climate part, as this forms the basis of my long-term plan, which is less explored in the context of Canadian cities. To this effect, four exciting scientific questions will be addressed in the short term. They are: (1) How urban-weather/climate interactions differ for differently located and configured Canadian urban regions? (2) How urban precipitation effect varies in time and space and what are the underlying mechanisms? (3) Are there any emerging regional patterns in projected changes to urban climate and weather characteristics for Canadian cities? (4) How will urban extreme hydrometeorology change, including urban pluvial and fluvial flooding, in future climate and their implications on feedbacks and interactions? The research methodology will include numerical urban climate model development and its application in climate change experiments and sensitivity experiments to understand processes and mechanisms. The proposed research will deliver a world leading, very high-resolution urban-climate modelling system and new knowledge base for adapting urban systems to a changing climate. This will be beneficial to policymakers, planners, designers, engineers, contractors and others working on climate-resilient infrastructure and will create the opportunity for multi-disciplinary and multi-institutional links needed to prepare Canada for a sustainable future. This research will constitute a significantly progressive step forward for Canada, enabling better assessments and investigations related to adapting urban systems to a changing climate, which will lead to considerable economic savings due to the substantially increased service life and performance of urban systems. One of the other major contributions will be the training of a group of highly qualified personnel, in collaboration with government, industry and consulting engineering firms, in the area of high-resolution urban climate modelling and analysis, which is in great demand both nationally and internationally.

现在越来越清楚的是，必须尽快采取行动，通过适应和开发社会可接受的低影响的可行战略和技术来应对气候变化的影响，无论是在北极这样的恶劣气候还是人口稠密的城市地区。在许多影响和适应研究中非常需要的超高分辨率气候变化信息，特别是对于加拿大的城市地区，严重缺乏。拟议的研究将解决这一重要和新兴的需求，以了解城市环境如何改变天气和气候，特别是在加拿大的背景下，在当前和未来的气候。